BQ24741 BQ24741RHDR Laptop Motherboard Battery Charger IC

Product Description

The BQ24741 Laptop Battery Charger IC is a high-efficiency synchronous battery charger controller designed for notebook computers and other portable electronic systems using Li-Ion or Li-Polymer battery packs. It supports battery charging for 2-cell, 3-cell, and 4-cell configurations.

The BQ24741RHDR is the Texas Instruments ordering version of the BQ24741 and uses a 28-pin 5 × 5 mm QFN/VQFN package. The device supports a 9V to 24V input voltage range and programmable charge voltage and charge current.

The BQ24741 includes adapter current sensing, battery charge-current regulation, charge-voltage regulation, and synchronous buck power-stage control. It is commonly used in laptop and notebook motherboard charging circuits.

Compatible Part Numbers

• BQ24741
• BQ24741RHDR
• BQ24741RHDT
• BQ-24741
• BQ24741-BQ
• Texas Instruments BQ24741

Product Details

• Product Type: Laptop Battery Charger IC
• IC Function: Li-Ion / Li-Polymer Battery Charger Controller
• Manufacturer: Texas Instruments
• IC Family: BQ24741
• Package: 28-Pin QFN / VQFN
• Package Size: 5 × 5 mm
• Input Voltage: 9V–24V
• Battery Support: 2 to 4 Series Cells
• Maximum Charge Current: Up to 10A
• Application: Laptop / Notebook Motherboard
• Switching Converter: Synchronous Buck
• Part Number: BQ24741RHDR

Warranty Details

Warranty: 1 Month Warranty
Warranty Service Type: Replacement Warranty
Warranty Type: Seller Warranty

Important Note:-

• Please verify the exact IC marking, package, pin count, and motherboard circuit before ordering.
• BQ24741 and BQ24741RHDR refer to the same BQ24741 device family, with RHDR identifying the package/orderable version.
• This IC is a battery charger controller, not a complete standalone laptop charger.
• Correct operation depends on the surrounding MOSFETs, inductors, current-sense components, adapter-detection circuit, and motherboard design.
• The IC supports 2-cell to 4-cell Li-Ion/Li-Polymer battery packs.
• Professional motherboard-level repair and soldering are strongly recommended.
• Compare the original IC marking and pin configuration before replacement.
• Product images are for reference only. Actual IC marking may vary slightly by manufacturing lot.
• Warranty does not cover incorrect installation, overheating caused by motherboard faults, soldering damage, short circuits, physical damage, or modification.
• If the product is found to be out of stock after ordering, the payment will be refunded.
• Functionality-related problems reported within the warranty period are eligible for replacement according to warranty terms.

FAQs

1. What is the BQ24741 IC used for?

The BQ24741 is a Li-Ion/Li-Polymer battery charger controller used in laptop and notebook charging circuits.

2. Is BQ24741RHDR the same IC family?

Yes. BQ24741RHDR is the orderable BQ24741 device in a 28-pin QFN/VQFN package.

3. How many battery cells does BQ24741 support?

The BQ24741 supports 2, 3, or 4 series Li-Ion/Li-Polymer cells.

4. What is the input voltage range?

The specified input operating range is 9V to 24V.

5. Is BQ24741 a laptop motherboard IC?

Yes. It is specifically designed for applications including notebook computers and portable systems and performs battery-charging control functions on the motherboard.